Calumma globifer

Calumma globifer
Calumma globifer in Mandraka 2018
Calumma globifer in Mandraka 2018
Calumma globifer in Mandraka 2018
CITES quotas
no legal export possible

First description:

(Günther, 1879)

Origin of the species name:

The German zoologist Albert Carl Ludwig Gotthilf Günther, then director of the Zoological Department of the Natural History Museum of London (Great Britain), borrowed the name of this chameleon species from Latin. Globus means translated as “sphere”. Günther was alluding to the strongly rounded nasal processes of the males, which appeared to him to be very spherically rounded.

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Calumma globifer

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Anjozorobe: -18.443136, 47.988281
Mandraka: -18.911900, 47.920000
Betatao: -18.135412, 47.817993
Ambohitantely: -18.195434, 47.290306

Distribution:

Calumma globifer has its distribution area in the residual rainforests of the central highlands. You can find this chameleon species east of Antananarivo in the area around Mandraka and north of Antananarivo in the forests of Anjozorobe. Both habitats are threatened by slash-and-burn agriculture, and both are hardly protected and thus disappearing every year more.

Appearance & size:

With a total length of 31 to 40 cm, these chameleons belong to the large chameleons. Males have two nose appendages and small, hardly visible occipital loves (only one millimeter). Neither belly nor back or throat has spines, but the whole scalation is heterogeneous. Coloration is varying and has different shades of green with dark stripes or a dark lateral stripe. Male Calumma globifer have a whitish-yellow pattern on their throats.

 

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature 23 24 23 23 22 19 19 19 20 21 22 23
Minimum temperature20 20 20 19 18 15 15 15 15 16 18 19
Maximum temperature 27 27 27 27 25 23 23 23 24 25 26 27
Rain days 27 24 19 17 18 21 20 15 16 20 25

We have collected the data given above over several years with thermometers and hygrometers at the finding places of the chameleons. "Average temperature" means that values of a whole month have been calculated to one average value per month. For example all measured minimum temperature values of February have been calculated to one average minimum temperature for February. In plain language, this means single peak values of a day may be a little higher or lower than the average minimum and maximum temperatures. It is possible that a location has an average maximum temperature of 29°C, but one day during that month it had 33°C or even 35°C there.

The region around Andasibe with the belonging forests Mantadia and Analamazaotra is located in Madagascar's eastern highlands at elevations between 900 and 1250 m above sea level. Thus temperatures sometimes reach temperatures above 25°C, but thermometers rarely climbs above 30°C or only in sunny places. At night, temperatures always drop to 10° to 15°C.

Humidity in Andasibe's rainforest is high all year long. During rainy season, it rains intensively every day, sometimes rain even lasts for days. But also dry season does not differ much besides the fact of cooler temperatures. It still rains at least every other day, in most years more often. Rain, humidity and temperature drop at night are the key features of the region around Andasibe.

2014 UVI Andasibe 2016 UVI Andasibe
Tageszeit = day time, Sonne = sun, Halbschatten = half shade, Schatten = shade

We have measured UVB data with a Solarmeter 6.5 in spring (March, April) at the peak of activity of chameleons in Madagascar. We always measured the values that a chameleon could maximally reach in its habitat.

Unfortunately, we have no ground temperatures for the region of Andasibe available yet.

Habitat:

The following pictures show the habitat of Calumma globifer in Anjozorobe and close to Mandraka. This species prefers the residues of intact rainforest in both regions and loves areas with old, big trees and big branches. In secondary vegetation, you can only find them close to Mandraka, and there may be only due to the ongoing slash-and-burn agriculture of the surrounding former forests. They like mossy branches, twined lianas and mostly climbs in the crowns or at least above your head.

Here are some 360° pictures from Anjozorobe-Angavo. With the mouse, you can rotate in all directions. If you click on the Theta logo, the pictures open in an enlarged view in a separate window. There is also the possibility to execute the images in full-screen mode. Have fun watching it!

Regenwald im Schutzgebiet Anjozorobe-Angavo, Region Analamanga, zentrales Hochland, Madagaskar, April 2018 – Spherical Image – RICOH THETA

Regenwald im Schutzgebiet Anjozorobe-Angavo, Region Analamanga, zentrales Hochland, Madagaskar, April 2018 – Spherical Image – RICOH THETA

Regenwald im Schutzgebiet Anjozorobe-Angavo, Region Analamanga, zentrales Hochland, Madagaskar, April 2018 – Spherical Image – RICOH THETA

Regenwald im Schutzgebiet Anjozorobe-Angavo, Region Analamanga, zentrales Hochland, Madagaskar, April 2018 – Spherical Image – RICOH THETA

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